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E. E. THOMAS. PNEUMATIC WATER LIFTING DEVICE.

' APPLICATION FILED JAN- 25, I9]?- 1,363A%3. Patented Dec. 28, 1920.

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EDWIN E. THOMAS, 0F IPORTLAND, OREGON, AfiSIGNOE T0 1H. 6. 'IENNEY, 0FPORTLANF), 01312 2101 PNEUIMIATEC \VA'IJEl't-LIFTING DEVICE.

L363Ad3,

Application filed January 25, 1917.

To all whom it may, concern:

Be it known that l, EDWIN E, THOMAS, a

citizen of the United titates, residing in the "ty of Portland, countyof Multnoinah, and smite of @i'egon, have invented certain new anduseful Improvements in Pneumatic veer-Lifting Devices, of which thefollowing is a specification.

My invention relates to pneumatic water lifting; devices of that classadapted to be placed in well, or submerged in a body of wate and adaptedto be operated by means of pressed air, controlled by a float, for thepurpose of forcing water from said well. or body of water to a higherelevation.

oi? the principal objects of my invention is to provide simple,practical and omatic pllllllllllC water lifting device such consti tionthat it can be used to Lift vater from any body of water which is Hsullicient depth to receive the device, thus it capable of adaptation toany locat n and for any capacity.

(Ether ts and advantages ill be apparent n the following description ofone practical embodimentof the invention,

to. on in connection with the accompanying sheet of drawingsillustrating the same, and in which,-

Figure 1 is a side elevation of a complete device with the outside shownin ver-' tical section;

2 is an enlarged, sectional view of the upper end of the device;

3 is a side elevation looking at the hand side oi the device, as shownin Jig. 1.; and

Fig. at is a reduced, horizontal, view taken on line M of Fig. 2.

My invention, as here illustrated is particularly adapted for use inwells, and comprises an outer casino 1, adapted to be let down into awell, and provided at its lower end with an inlet check valve 2, foradmitting: water to the lower end of said casing and for preventing itsescape therefrom. Said casing is provided at its upper end with a topcap 3, upon and through which is mounted the controlling mechanism ofdevice. Mounted through said top cap 3, is a water pipe 4;, provided atits upper end with a check valve 5, the lower end of said wipeterminating a short distance above the inlet check valve 2, in saidcasing 1. Slidably mounted around said pipe 4, within sectionalSpecification of Letters Eatent.

Patented Dec. 28, 1920.

Serial No. 144,439.

vided in side with a longitudinally e2;- iendinp; groove, or socket 8,as clearly shown in Fig. Said valve-operating rod 7, is pr vided at itslower end with a knob 9, at its upoer end, within said casing, a cor?ending knob 10, said knobs ptel to be engaged by said float be; e. fl.id operating rod 7, operates through a suitable packing 11, in said topj 3, and is provided at its upper end with nuts 12 and 13, and with twocoiled springs l and 15, hearing at their extreme r iposite ends againstthe nuts 12 and 13,

adjacent ends against washerl6 and 17, between which a ver 18, isconnected to '7, as clearly indicated in lever 18, is connected 1 336119, turning; within the is, which is supported on the said valve casingbeing 3, pipe 22, through c 1, and also havan air pipe 23, pressure canbe valve casing and the end of the main cascasing also has an eX- .ptedto be connected with W when the valve lever 18, is l d downwardly at itsouter end, in a n 431 and for a purposeshereinafter again referred to.

The operation of my invention may be briefly described as follows: Withthe parts in the positions as shown in Figs. 1 and 2, the casing 1, issupposed to be filled with water which has entered said casing throughthe inlet check valve 52, carrying the float 6, to the top of the casing1, where it is about to engage the knob 10, on the operating rod 7, insuch manner that it will raise said operating rod 7, and thus raise thevalve lever 13, and turn the valve member 19, so as to opencommunication between the air supply pipe and the pipe 22, leading intothe top Of the casing 1, above the float 6. This air pressure withinsaid casing above the water will force the Water into. the lower amanner as to move it downwardly, thus moving the valve lever 18downwardly, and turning the valve member 19, so as to open communicationbetween the pipe 22, and the exhaust outlet 24:, in said valve casing20, at the, same time cutting oil the air supply through the pipe 23.With the exhaust 24 open, the air in the casing 1, passes out freely asanother supply of water runs in through the inlet check valve 2, againraising the valve '6, to the top of the casing 1, where its operation isas before described.

Attention is called to the fact that with the coiled springs 14 and 15,on the valve operating rod 17 above and below the end of the valve lever18, said valve lever is given a quick movement in either direction, forthe springs will be partially compressed by the movement of the float 6,against the knobs 9 and 10, on the operating rod 7, before said valvelever 18 is started. As soon as the tension of either of the springs 14or 15, as the case may he, becomes sufficient to overcome the frictionof the valve lever 18, it will be moved quickly, and thus quickly openfull communication between the pipes and 22, or between the pipe 22 andthe outlet port 24:.

It will thus be seen that with a supply or air under pressure connectedto the pipe 23, my device will operate continuously and automatically tolift the water from the well through the pipe l and the check valve 5,and thence to its place or" delivery. The broken lines in Figs. 2 and 4indicate a well casing.

I am aware that changes can be made in the details of my invention, hereshown for purposes 01'": illustration, without departing from the spiritthereof, and I do not, therefore, limit the invention to these details,except as I may be limited by the hereto appended claims.

1 claim:

1. A pneumatic water lifting device of the character referred to,comprising in combination with a well, a casing having avalve-controlled inlet at its lower end to permit inflow and preventoutflow, a water supply pipe extended down into said casing and openedat its lower end, a float around said pipe within said casing, saidfloat substantially filling the space around said pipe within saidcasing for the length of said float, a valve-operating rod in saidcasing and through said float adapted to be moved in opposite directionsas said float reaches the opposite limits of its movement within saidcasing, means for connecting a source of air under pressure with saidcasing outside of said pipe, a valve with valve lever interposed in saidconnections for cutting 0E said air supply, said valve having an exhaustport adapted to be put into communication with said casing when the airsupply is cut off therefrom, said valve-operating rod operating throughsaid valve lever, and yieldable connections between said valveoperatingrod and said valve lever, whereby said valve lever is yieldingly movedin opposite directions by said valve rod and said float, substantiallyas described.

2. In a water lifting device, in combination, a tubular casing having avalve-rentrolled inlet at its lower end, a discharge pipe extended downinto said casing, and open at its lower end, a float moving up and downaround said discharge pipe within said tubular casing, a three-way valvecontrolling the inlet and exhaust from said tubular casing, said valvehaving an operating lever, an operating rod extending down into saidtubular casing and having means at its opposite ends for movement bysaid float as said float rises and falls in said tubular casing, saidrod operating through the EDWVIN E. THOMAS.

In presence of- V I. M. GRIFFIN, J. C. STRENG.

